​​​​​​​Have you selected the Computer fan you need?

At present, the bearings used for fans mainly include oil bearing (Sleeve), single ball bearing (1Ball+1Sleeve), and double ball bearing (2Ball Bearing), all of which have their own advantages and disadvantages, and of course, there are significant differences in prices.
Comparing the oil bearing, single ball bearing, and double ball bearing that we come into daily contact with, in terms of noise level: double ball bearing>single ball bearing>oil bearing, but the service life is exactly the opposite. The latter types of bearings are newly adopted technologies, although their advantages are quite obvious, manufacturing difficulties and high prices have become the main factors restricting their popularity.
Some buyers are also concerned that some manufacturers may use low-priced and low-quality lubricants, integrated circuits, or use substandard welding processes to save material costs, resulting in motors not working properly, and so on.
In fact, these problems that every buyer is worried about are normal. The manufacturer's R&D, design and production experience in producing Computer fan also has certain advantages in the market.